If you use only one language on your computer (probably that will be [EN]) simply you can remove icon tray (right down corner) which represents language choice (probably between english and some other one). Language refers to “keyboard language“ – the symbols/letters you are writing in the computer with your keyboard, is the language that I’m talking about here – not the langauge of the Windows interface.
Simply you can right click on icon and select Settings… (here is HR as Croatian keyboard layout)
Choose any language you don’t use (if you have one) and click on Remove. Then just Apply and close the Window.
Here I have english and croatian keyboard layout, and because I use only the Croatian one, the English one can easily be erased/removed.